In a medium-sized bowl, mix together the ground turkey, beaten egg, grated cheese, flour, parsley and salt and pepper.
Use a small coffee spoon to scoop out the turkey meat mixture and shape it into round balls. (about ½ inch to ¾ inch round) Set aside.
Start The Broth
Heat the oil in a large stock pot and sauté the onions, celery, garlic, canned tomatoes and chopped chicken breasts with a pinch of salt and pepper for about 10 minutes.
Add in the white wine while stirring to release any brown bits at the bottom of the pan.
Next, add the chicken stock, cover and bring to a boil then lower the heat and let simmer for about 10 minutes.
Add in the meatballs, cover and cook over medium heat for about 20 minutes.
Plate and serve topped with some chopped parsley and grated Parmigiano Reggiano cheese